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Finding the Fourth Proportional to 504.39, 696.04 and 283.36

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Solution

The fourth proportional to 504.39, 696.04 and 283.36 is: 391.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.39 : 696.04 = 283.36 : x
  2. Step 2: Convert to fraction form
    504.39/696.04 = 283.36/x
  3. Step 3: Cross multiply
    504.39x = 696.04 × 283.36
  4. Step 4: Simplify right side
    504.39x = 197,229.89
  5. Step 5: Solve for x
    x = 197,229.89/504.39
  6. Step 6: Final answer
    x = 391.03

Related Problems

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Double scale
Find fourth proportional to 505.39, 697.42 and 284.36
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.